AMPL® is a comprehensive, powerful and flexible algebraic modeling language for the linear, nonlinear and integer programming problems often encountered in optimization. ILOG is an authorized reseller of AMPL, which was developed at Bell Laboratories, the research and development arm of Lucent Technologies. ILOG offers AMPL in two ways:

• AMPL CPLEX System, which combines the AMPL modeling language with ILOG CPLEX.
• AMPL, as an additional option when purchasing ILOG CPLEX or ILOG Parallel CPLEX.

Detailed information about AMPL can be found at the AMPL website, maintained by AMPL developers.

AMPL is based upon modern modeling principles and utilizes an advanced architecture providing flexibility most other modeling systems lack. Successfully used in demanding mathematical programming modeling applications around the world, AMPL is available from ILOG on a variety of platforms.

AMPL allows modelers to create models with maximum productivity. By using AMPL's natural algebraic notation, even a very large, complex model can often be stated in a concise (often less than one page), understandable form. Since AMPL models are easy to understand, debug and modify, AMPL also makes maintaining models easy.

Benefits

• Allows users to express models concisely in familiar, flexible algebraic notation:
• Using indexing and sets, whole classes of constraints or objective terms can be described in relatively few generalized model statements
• Supports a wide variety of natural algebraic expressions
• Allows separation of model and data
• Highly flexible-for example, does not impose any particular data or model entry order
• May be used in interactive or batch environments
• Allows models to be easily modified and maintained:
  • Sets, variables and constraints can be readily added, changed or deleted
  • Separate data files can be readily updated, or imported from outside data sources
  • External databases can be easily connected into AMPL tables
    • ILOG offers ODBC database support on Microsoft Windows platforms
• Minimizes modeling errors with extensive error checking:
  • Checks model syntax and consistency
  • Closely checks validity of subscripts
• Covers most optimization model types:
  • Linear programming problems
  • Network problems
  • Mixed integer programming problems
  • Quadratic programming problems
  • General nonlinear programming problems
• Provides powerful, flexible display options:
  • Permits interactive data and solution browsing
  • Allows the creation of customized solution reporting

ILOG support for AMPL

ILOG provides support and maintenance services for AMPL when AMPL is used in conjunction with any ILOG CPLEX product. While AMPL can be used with other solvers, ILOG does not provide support for such usage.

AMPL/CPLEX Student Edition

A student/trial edition of the AMPL CPLEX System is available for free download from the Web.

How to get AMPL from ILOG